Patents by Inventor Andreas Heck

Andreas Heck has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for conditioning isocyanates
    Patent number: 7595422
    Abstract: The invention relates to a novel process for conditioning isocyanates. The purpose of conditioning of isocyanates or of mixtures of isocyanates is to remove organophosphorus components in a suitable manner such that the organophosphorus compounds no longer interfere with processing of the isocyanates.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: September 29, 2009
    Assignee: Bayer MaterialScience AG
    Inventors: Frank Richter, Andreas Hecking, Martin Brahm
  • Preparation of uretdione polyisocyanates
    Publication number: 20090143558
    Abstract: The invention relates to the use of specific pyridines as catalysts for the dimerization of isocyanates (uretdione formation) and a process for preparing polyisocyanates having a high content of uretdione groups.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 4, 2009
    Inventors: Frank Richter, Andreas Hecking, Reinhard Halpaap
  • Process for conditioning isocyanates
    Publication number: 20080161534
    Abstract: The invention relates to a novel process for conditioning isocyanates. The purpose of conditioning of isocyanates or of mixtures of isocyanates is to remove organophosphorus components in a suitable manner such that the organophosphorus compounds no longer interfere with processing of the isocyanates.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 3, 2008
    Inventors: Frank Richter, Andreas Hecking, Martin Brahm
  • Preparation of polyisocyanates containing uretdione groups
    Patent number: 7151151
    Abstract: A method of dimerizing isocyanates including reacting the isocyanates in the presence of phosphines containing at least one directly phosphorus-attached bicyclic, cycloaliphatic radical. The polyisocyanate compositions obtained as described above can be used in mouldings, coating materials, adhesives, sealants or adjuvants that further include the polyisocyanate compositions and one or more materials selected from antioxidants, light stabilizers, pigments, fillers, additives, levelling assistance, defoamers and matting agents. The coating materials, adhesives or sealants can be used to coat substrates.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: December 19, 2006
    Assignee: Bayer MaterialScience AG
    Inventors: Frank Richter, Reinhard Halpaap, Hans-Josef Laas, Andreas Hecking
  • Uretdione formation in solution
    Publication number: 20060173152
    Abstract: The invention relates to a process for preparing polyisocyanates having a high uretdione group content by phosphine-catalysed isocyanate oligomerization in the presence of organic carbonates and/or nitriles.
    Type: Application
    Filed: January 17, 2006
    Publication date: August 3, 2006
    Inventors: Frank Richter, Hans-Josef Laas, Reinhard Halpaap, Andreas Hecking
  • Preparation of polyisocyanates containing uretdione groups
    Patent number: 7067654
    Abstract: The invention relates to the use of cycloalkylphosphines as catalysts for isocyanate dimerization and to a process for preparing polyisocyanates containing uretdione groups.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: June 27, 2006
    Assignee: Bayer MaterialScience AG
    Inventors: Frank Richter, Reinhard Halpaap, Hans-Josef Laas, Andreas Hecking
  • Preparation of polyisocyanates containing uretdione groups
    Publication number: 20050113551
    Abstract: A method of dimerizing isocyanates including reacting the isocyanates in the presence of phosphines containing at least one directly phosphorus-attached bicyclic, cycloaliphatic radical. The polyisocyanate compositions obtained as described above can be used in mouldings, coating materials, adhesives, sealants or adjuvants that further include the polyisocyanate compositions and one or more materials selected from antioxidants, light stabilizers, pigments, fillers, additives, levelling assistance, defoamers and matting agents. The coating materials, adhesives or sealants can be used to coat substrates.
    Type: Application
    Filed: November 17, 2004
    Publication date: May 26, 2005
    Inventors: Frank Richter, Reinhard Halpaap, Hans-Josef Laas, Andreas Hecking
  • Low-monomer-content polyisocyanates containing uretdione groups
    Publication number: 20040110915
    Abstract: The invention relates to polyisocyanates which contain uretdione groups, have a particularly low monomer content and are stable towards redissociation and also to their use.
    Type: Application
    Filed: December 3, 2003
    Publication date: June 10, 2004
    Inventors: Frank Richter, Reinhard Halpaap, Hans-Josef Laas, Andreas Hecking
  • Preparation of polyisocyanates containing uretdione groups
    Publication number: 20040106789
    Abstract: The invention relates to the use of cycloalkylphosphines as catalysts for isocyanate dimerization and to a process for preparing polyisocyanates containing uretdione groups.
    Type: Application
    Filed: November 21, 2003
    Publication date: June 3, 2004
    Inventors: Frank Richter, Reinhard Halpaap, Hans-Josef Laas, Andreas Hecking